Description
The KPOS Scout Advanced from FAB Defense takes a different approach than most Glock chassis systems on the market. Instead of going all polymer or all metal, FAB split the difference with a hybrid build: a rigid 6061-T6 aluminum upper machined with a full-length 1913 MIL-STD Picatinny rail up top, and a reinforced polymer lower underneath to keep the weight down. The result is a platform that holds zero with mounted optics and feels solid on the shoulder pocket, without turning your 9mm into a boat anchor. That aluminum upper also means ported models like the G17C and G19C are fair game, something plenty of competing kits can't claim.
Dropping Your Glock Into the KPOS Scout Advanced
Installation is where this kit really shines. The one-button snap-locking design means your pistol drops in and locks up with no tools, no gunsmithing, and no permanent changes to your Glock. The ambidextrous M4-style charging handle works the slide from either side, and the FGG-K vertical foregrip folds flat to horizontal and includes an extendable trigger guard. Two removable side rails with built-in thumb rests give you mounting real estate for lights and lasers, plus a short polymer rail section on the lower. This gray version pairs the chassis with FAB's Tail Hook style stabilizing brace for a steadier hold and quicker follow-up shots.
What Sets the Scout Advanced Kit Apart
Where the standard Scout kit gets you the chassis and basics, the Advanced package rounds things out with FAB's FRBS folding front and rear backup sights, so you're on target right out of the box even before mounting a red dot. You also get the Bungee single-point sling, an SLS quick-detach sling swivel, and a dedicated carrying backpack that keeps the whole rig organized and ready to grab. Fitment covers Glock 17, 19, 19X, 22, 23, 25, 31, 32, and 45 in Gen 3 through Gen 5, making this one of the more versatile chassis systems FAB has put out.
Key Specifications
- Manufacturer: FAB Defense
- Manufacturer Part Number: FXKSCOUTSLAGR
- UPC: 7290111585845
- Model: KPOS Scout Advanced with Brace
- Color: Gray
- Pistol Fit: Glock 17, 19, 19X, 22, 23, 25, 31, 32, 45 (Gen 3-5, including C models)
- Upper Material: 6061-T6 aluminum
- Lower Material: Reinforced polymer composite
- Top Rail: Full-length 1913 MIL-STD Picatinny
- Charging Handle: Ambidextrous, M4 style
- Foregrip: FGG-K folding vertical grip with extendable trigger guard
- Sights: FRBS folding front and rear backup sights
- Installation: Tool-free, one-button snap-locking assembly
- Ported Model Compatible: Yes (G17C, G19C)
What’s Included
- KPOS Scout chassis (aluminum upper, polymer lower)
- Stabilizing brace
- FGG-K folding vertical foregrip
- FRBS folding front and rear backup sights
- Two removable side rails with thumb rests
- Bungee single-point sling
- SLS quick-detach sling swivel
- Dedicated carrying backpack
Frequently Asked Questions
Which Glock models fit the KPOS Scout Advanced conversion kit?
This kit accepts Glock 17, 19, 19X, 22, 23, 25, 31, 32, and 45 pistols in Gen 3 through Gen 5, including the ported C models like the G17C and G19C. It will not fit the Glock 34, and pistols wearing a backstrap grip add-on need to have it removed first. If your pistol has an oversized aftermarket rear sight, check clearance before buying.
Do I need tools or a gunsmith to install my pistol in the KPOS Scout?
No. The Scout uses a one-button snap-locking design, so your Glock drops in and locks up in seconds with zero tools and zero modifications to the pistol. Taking it back out is just as quick, so you can run the gun bare or in the chassis whenever you like.
What makes the Scout Advanced different from the standard KPOS Scout kit?
Both kits share the same hybrid aluminum and polymer chassis, foregrip, sling, and sling swivel. The Advanced package adds FAB's FRBS folding front and rear backup sights plus a dedicated carrying backpack, so you have usable sights and a transport solution right out of the box. This gray version also includes the stabilizing brace.
Will the KPOS Scout Advanced hold zero with a red dot mounted?
Yes, and that is the main reason FAB went with a machined 6061-T6 aluminum upper instead of polymer. The full-length Picatinny rail is integrated into that rigid upper, giving optics a stable, repeatable mounting surface. Polymer-topped kits tend to flex more, which is exactly what this design avoids.




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